#!/usr/bin/env node

const Dog=require('./02-dog.js');

const taidi=new Dog('taidi',4),
      zangao=new Dog('zangao',6);

taidi.on('bark',onBark);
zangao.on('bark',onBark);

function onBark(){
  console.log(this);
  console.log(`name: ${this.name}, energy: ${this.energy}`);
};
